查询词典 field magnet

There is only the magneto static field of the bar magnet which does not change with time.

但是，这是由于使用了场的语言，所以才形成了提出这个问题的观念。

The form of the stable geomagnetic field is like that of a bar magnet at the center of the Earth.

稳定地磁场的形状与地球中心的棒磁铁的形状相似。

Fluid iron in the planet's core acts like a huge bar magnet, creating a relatively weak magnetic field.

地心处的液态铁就像一个巨大的条形磁铁，会形成相对较弱的磁场。

Because the core current is somewhat symmetrical around the axis of rotation, the associated magnetic field is similar to that of a bar magnet.

因为地核流在旋转轴周围存在着一些对称，所以相关的磁场与棒磁铁的磁场相似。

Like a simple bar magnet, this field's primary magnetic flux is directed out from the core in the Southern Hemisphere and down toward the core in the Northern Hemisphere.

地磁就如同一根普通的磁铁棒，而这个磁场的主要磁通量是在南半球由地核向上穿出，并在北半球向内进入地核。

Birds and compasses know north from south because, like a giant bar magnet, the earth's magnetic field has two poles that line up closely with the planet's axis of rotation.

候鸟与指北针都知道何为北方、何为南方，因为地球就像一条巨型磁铁棒，它的磁场有两极，且这两个地磁的磁场线和地球的自转轴非常接近。

Secondly, We design the voltage-modulating circuit of the BLONDEL. We can modulate the voltage of the aided electrical exciting winding, then result in the alternation of the air-gap magnet field. We can keep the outer voltage invariable.

其次，本文采用96系列单片机设计了双电压复合励磁稀土永磁同步发电机的电压调节电路，可调节加在电励磁绕组上的电压，从而改变发电机气隙磁场的强弱的变化，使发电机的输出电压保持恒定。

Then it discusses the method and problems of designing the Rare-Earth Permanent Magnet Brushless DC motors, and briefly introduces the principles of Finite Element Method for calculating the electromagnetic field as well as how to use the ANSYS software in checking the electromagnetic values.

然后论述了稀土永磁无刷直流电机设计的方法和需要考虑的问题，并对电磁场计算有限元方法的原理作了简要介绍，以及如何用ANSYS软件对电机进行电磁场数值校核。

Magnetotherapy - is a method of healing by alternating low-frequency and constant magnet field.

磁疗-是一种愈合交替的低频和不断的磁场。

The choice for material of iron core, all the structure design and the method of collimation for the magnet were also described. Simulation results of Opera show that when the length of the core is 220 mm, the effective magnetic length is about 302 mm and the maximal magnetic density is around 0.215 T at four interior angles. Corresponding field uniformity is within 0.8% in the area of 133 mm×200 mm.

根据磁铁的设计指标，给出了磁铁设计要求铁芯材料选择方法、整体的结构设计以及如何对磁铁进行定位和准直，并采用Opera程序进行模拟计算，结果表明：当铁芯长度为220 mm时，磁有效长度大约为302 mm；磁感应密度最大的地方在4个内角上，约为0.215 T；在133 mm×200 mm的平面范围内，磁场均匀性优于±0.8%。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。